baber/WOPTO huggingface dataset:
Patent GB-862917-A (GB)
Title: Improvements in or relating to apparatus for sealing a joint between two opposed surfaces
IPC: H01F41/00
Filed: 1959-02-12
Abstract: 862,917. Joint-making packing. ARECHETA MOTA, J. A. Feb. 12, 1959 [Feb. 19, 1958], No. 4896/59. Class 122 (3). The joint between two opposed surfaces is sealed by a tubular elastic packing 1 connected by a tube 2 to an elastic chamber 3 located in a rigid container, means being associated with the container for applying external pressure to the chamber and therefore to fluid, such as air, oil or water, in the packing, tube and chamber whereby the packing is expanded into sealing contact. Pressure on the chamber 3 is effected by a device 4 operated by hand, on electromagnet or motor. Manual operation is effected by a handle 11, which may act through a coil spring, and a bolt 10 is provided for setting the desired pressure. Suggested materials for the parts are rubber, plastics or steel, the tube 2 being reinforced if necessary. The packing may provide the seal between a transformer casing and its door, the adjacent surfaces of which are separated slightly in the region of the packing by spacers for bolts limiting the displacement of the packing and its compression by the door; if desired, the packing may have projections engaging locating recesses on one of the surfaces or it may be secured by an adhesive.
Patent GB-689816-A (GB)
Title: Improvements relating to the operation of electric furnaces having contmuous self-baking electrodes
IPC: C25C3/12
Filed: 1951-03-01
Abstract: 689,816. Self-baking electrode. ELEK- 'TROKEMISK AKTIESELSKAP. March 1, 1951 [March 13, 1950], No. 4958/51. Class 39(iii) Current is supplied to one or more selfbaking electrodes in a furnace for producing molten metal, e.g. aluminium, through substantially vertical metal contact rods or contact tubes 2 extending normally into the baked zone 10b of the electrode. The lower part of each contact extending below the unbaked electrode zone is straight or screwed and is of uniform cross-section; and as the electrode is lowered during consumption, each contact rod is periodically raised in the electrode without removal therefrom until the red hot end of the contact rod 2 reaches a region 10a of the baking zone of the electrode where the electrode paste has become dry and where there is a sufficient concentration of unsaturated hydrocarbons to coke the electrode material to bond it to the lower end of the raised contact 2. The lower ends of the contacts are preferably cylndrical or rectangular, and the upper end 11 may taper downwardly. The contact is loosened for raising by blows from a pneumatic hammer. When the contact has been raised, the hole so formed in the baked part of the electrode is filled with cryolite, alumina or pasty material by feeding it either through the tubular contact rod or through a hole in the side of the electrode. A steel casing 6 forms the electrode mould and carries a gas collecting ring 7, to which pass tar fumes from the lower part of the electrode. Specifications 427,855 and 611,455 are referred to.
Patent GB-688090-A (GB)
Title: Improvements in or relating to a process for the separation of sylvinite ore
IPC: B03D1/06
Filed: 1951-03-01
Abstract: Sylvinite ores are deslimed by flotation in an aqueous brine thereof using as flotation reagent an alkylol cellulose or an alkali metal derivative thereof.  The reagent may be hydroxyethyl cellulose, purified or contaminated with the byproducts of its manufacture, i.e. glycols, sodium chloride and water.  After desliming, the sylvinite may be separated by tabling or by flotation with a mixture of the acetate salts of hexadecylamine, octadecylamine and octadecenylamine, with or without the addition of starch.
Patent GB-1384492-A (GB)
Title: Disc brake having a switching device for the electrical circuit  of a warning device
IPC: F16D66/02
Filed: 1973-02-01
Abstract: 1384492 Brake-lining-wear warning devices DEUTSCHE BENDIX AUSRUSTUNGS GmbH 1 Feb 1973 [3 Feb 1972] 5159/73 Heading F2E  In a disc brake having a disc 2, at least one spring 9 for moving apart and/or holding down two friction pads 4, 4<SP>1</SP>, and a switching device adapted to close a circuit including a warning device for indicating excessive brake lining wear, one electrical contact member of the switching device is the spring 9 itself or a member mounted directly on the spring, the other electrical contact member being the disc, these two members coming into contact on braking with excessively worn linings. As shown in Figs. 1, 2, spring 9 is a hold-down spring consisting of wire covered with insulating sheathing in the form of approximately a flattened coil having one-and-a-half turns. The central portion 9 lies above pins 8, 81, Fig. 2, on which backing plates 6, 6<SP>1</SP> of brake pads 4, 4<SP>1</SP> are slidable by bores 7, 71; the outer portions 11, 11<SP>1</SP> are in contact with the brake linings 5, 5<SP>1</SP>, and are held apart by stops 10, 10<SP>1</SP>, integral with the brake housing 1. One end of the spring 9 is formed into a plug pin 15 for engagement with a connector socket (16, Fig. 3, not shown) connected through an optical warning device and a battery to a chassis terminal; the disc 2 is also connected to a chassis terminal. In operation, by the time the brake linings 5, 5<SP>1</SP> have been worn down to the admissible limit, the backing plates 6 have pushed the central zones 19, 19<SP>1</SP>, Fig. 1, of the spring portions 11, 11<SP>1</SP> into contact with the brake disc 2, the disc then abrades the sheathing, and the wire makes contact with the disc; thereby completing the warning circuit. During subsequent braking operations, if the linings are not replaced, the backing plates 6, 6<SP>1</SP> bear (through spring 9) against the fixed stops 10, 10<SP>1</SP>, reducing the braking action.  In the modification of Fig. 6, spring 9 is not insulated and does not form part of the circuit. Instead, a separate contact member 21 comprising an injection-moulded synthetic plastics body 27 incorporating a conduction core 26 is clamped around the outer arms of the spring to provide contact zones 22, 22<SP>1</SP>.
Patent GB-886133-A (GB)
Title: Joint constructions
IPC: F16L23/18
Filed: 1960-02-12
Abstract: 886,133. Pipe joints ; pipe stoppers. UNITED AIRCRAFT PRODUCTS Inc. Feb. 12, 1960 [Feb. 25, 1959], No. 5185/60. Class 99(1). [Also in Group XVIII] A joint construction includes a pair of interfitting joint members assembled by relative axial approaching motion and having means thereon defining a groove containing a compressible 0-ring, means being provided for obtaining, in response to a relative axial approaching motion of the members to assembled position, first a radial and then a longitudinal compression of the 0-ring. As shown in Fig. 1, a pipe 10 is received at one end of an outer tubular member 11 and is provided with a flared end 15 which is engaged by a conical end portion 14 of an inner tubular member when the latter is screwed into the other end of the member 11. Hollow metallic 0-rings 32, 33, which may be internally pressurised are self-energised as described in Specification 752,760, rest against internal and external shoulders 24, 19 in members 11, 12 respectively, and are compressed longitudinally by the ends of a floating member 28 which abuts a shoulder 23 in the member 11 and which is formed with an inclined surface 34 engaging the flared end of the pipe 10. The members 11, 12 are formed with tapering portions 25, 21, 17 terminating into cylindrical portions 26, 22, 18, the tapered portions effecting radial compression of the 0-rings 32, 33. In another embodiment, Fig. 4, inter-engaged pipe ends 35, 36 having mating flanges 37, 38 secured by a clamp 39 are formed respectively with internal and external tapered and cylindrical surfaces for compression of a resilient 0-ring 48. In a further embodiment, Fig. 5, a flanged pipe end 50 is engaged by a flanged closure member 49 bolted to the pipe end, the inter-engaging portions of the pipe end and closure member being provided with tapered and cylindrical surfaces for compression of an 0-ring 62.
Patent GB-826626-A (GB)
Title: Improvements relating to dolls and other figures
IPC: A63H3/40
Filed: 1956-02-20
Abstract: 826,626. Walking dolls and figures. WALSS, W. K. Feb. 20, 1956 [Sept. 20, 1955], No. 5199/56. Class 132(3) A doll or other figure of the "walking" type and having a head which is turned when the figure is caused to "walk" has its legs interconnected by a rocking member which causes one leg to swing forwards as the other swings backwards, a shaft for turning the head being connected to the rocking member via means, e.g. a slotted plate, which causes the shaft and the head to turn through a greater angle than the rocking member. As shown, each leg 82 is pivoted on a rod 83 and has an upstanding pin 84 which engages in slots formed in arms of a rocking member 77 and a plate 78. The member 77 is rotatable on the shaft 9 and the plate 78 is fixed to the shaft. Fig. 4 shows angular movement G through which the rocking member 77 rotates compared with the larger angle H moved by the plate 78 for a given leg movement. Since it is the plate 78 which moves the head, a greater turning movement of the head results. The rocking member 77 is necessary to maintain the positions of the leg pins 84 relative to each other. Means for moving the legs and for moving an eye-mechanism by a push-button 64 is described in Specification 826,628. The eyemechanism is described in Specification 826,627.
Patent GB-112707-A (GB)
Title: Improved Standpost and Water Waste Preventer.
Inventor: SIME JOHN
IPC: E03B9/20
Filed: 1917-04-13
Abstract: 112,707. Sime, J., (Laing, A. T., Hoare, A., Ash, H. D., and Warburton, W. G., [trading as Turner, Hoare, & Co.]). April 13, 1917. Stand-pipes; fountains. -The standpost for water supply described in Specification 27902/13 is modified by forming the controlling spindle C with one three-way passage working in a socket B with three branches communicating w i t h the chamber A, the supply pipe B', and the outlet pipe.
Patent GB-845567-A (GB)
Title: New monoazo-dyestuffs of the benzene and naphthalene series containing halogen acylamino groups and their manufacture and use
IPC: C09B62/473
Filed: 1958-02-18
Abstract: The invention comprises mono azo dyestuffs of the general formula: <FORM:0845567/IV (c)/1> where A represents a b -halogen-ethyl group, Z represents the same or a benzene residue, which may contain a non-water solubilising substituent and one X represents a hydrogen atom and the other X a sulphonic acid group.  The dyestuffs may be prepared by coupling a diazo compound of general formula: <FORM:0845567/IV (c)/2> with a coupling component of formula: <FORM:0845567/IV (c)/3> When A and Z are both b -halogen ethyl groups, the dyestuff of formula (1) can be obtained by the diacylation of dyestuffs of the formula:  <FORM:0845567/IV (c)/4> With the anhydride or halide of a b -halogen propionic acid e.g. b -chloropropionyl chloride, in an aqueous medium and in the presence of an acid binding agent.  Many examples are given in which values specified for Z include benzene residues containing the following substituents: methyl, nitro and mono and dichloro. The dyes may be used to dye silks, wools, synthetic fibres and cellulose, red, bluish red and yellowish tints.
Patent GB-641299-A (GB)
Title: Improvements relating to composite metal products for use in contact with molten glass
IPC: C03B5/167
Filed: 1948-02-23
Abstract: Apparatus used in contact with molten glass and made from a foundation or core of base metal or base metal alloy having a solidus temperature at least as high as 1200 DEG C and a covering or sheath of a platinum group metal or alloy of two or more such metals has an intermediate layer of inert material, such as an oxide which serves to prevent diffusion of oxygen to the foundation or core and to prevent interalloying of the foundation or core with the covering or sheath.  The foundation or core may be of molybdenum or tungsten or an alloy of these metals and the covering or sheath may be platinum or an alloy of platinum with a smaller quantity of rhodium or palladium or both.  The oxide layer may be moulded onto the foundation or core with the aid of a binder which is subsequently removed by ignition, or it may be formed by applying a layer of metal e.g. chromium or aluminium by evaporation or spraying, this layer being then oxidised.  If the base is of nickel-chromium alloy a surface of oxide may be formed directly by high temperature oxidation.
Patent GB-1425225-A (GB)
Title: Control circuit for electric motors
IPC: H02K29/08
Filed: 1973-02-02
Abstract: 1425225 Control of brushless motors CANON KK and CANON SEIKI KK 2 Feb 1973 [3 Feb 1972] 5380/73 Heading H2J  A brushless D.C. motor is energized by a system having a plurality of parallel circuits connected across a power supply 16, each circuit comprising a driving coil 11, 12 or 13 and a switching transistor 8, 9 or 10 controlled by signals responsive to rotor position and arranged so that only one transistor is conducting at any time. The rotor position may be sensed by photo-diodes 4, 5, 6 co-operating with a notched disc in conventional manner (Figs. 1A, 1B, not shown). Gate circuits 17, 18, 19 connected between the photodiodes and the bases of transistors 8, 9, 10 are controlled by the potential on the collector of the previous transistor in the chain, the coils being energized in the sequence 11, 12, 13. When coil 11 is energized, the collector of transistor 8 is at low potential and holds gate 17 closed, thereby preventing transistor 9 from being switched on until transistor 8 switches off. The gates may consist of a diode and transistor, two transistors or a diode (Figs. 5 to 7, not shown). In a modification, the photo-diodes are used to connect the transistors 8, 9, 10 (Fig. 8, not shown).  The rotor position sensor may utilize magnetic responsive devices, such as reed switches, magnetic diodes or magneto-restrictors, and permanent magnets, which are periodically screened by a non-magnetic segment on the rotor.
Patent GB-754944-A (GB)
Title: Improvement in polymerization of cyclic amides
IPC: C08G69/24
Filed: 1954-02-24
Abstract: 754,944. Polymerizing pyrrolidone. HOFFMAN & CO., Inc., A. Feb. 24, 1954 [June 24, 1953], No. 5402/54. Class 2 (5). Pyrrolidone is polymerized in the presence of a polymerization catalyst and an acyl compound as activator while suspended in an organic liquid which is a non-solvent for pyrrolidone. The polymer is obtained as a powder. Suitable activators are acyl anhydrides, alkyl esters, lactones and acyl pyrrolidones used in a concentration of from 0.001 per cent to 25 per cent by weight of the pyrrolidone ; 30 parts non-solvent are preferably used per 10 parts pyrrolidone. The catalysts are as disclosed in Specification 731,294 and the preferred polymerization temperatures are 20- 50‹ C. In an example, 1.5 grams of potassium were added to 101 grams pyrrolidone suspended with agitation in 300 c.c. dry petroleum ether, followed by 1 gram adipyl dipyrrolidone dissolved in 5 c.c. pyrrolidone. Polymerization occurred immediately, the 44 grams of resulting polymer being separated, washed with water and acetone and dried. Specification 749,332 is also referred to.
Patent GB-870359-A (GB)
Title: Method of automatic regulation of the period of nuclear reactors
Inventor: KOVANIC PAVEL
IPC: G21C17/14
Filed: 1959-02-17
Abstract: 870,359. Controlling nuclear reactors. ZAVODY V. I. LENINA PLZEN NARODNI PODNIK. Feb. 17, 1959 [Feb. 18, 1958], No. 5410/59. Class 39(4). To provide automatic regulation of a reactor 1, a detecting element 2 measuring the intensity of radiation of the reactor is moved by a servo mechanism 7 according to a signal received from 6, and the ouput from. the element 2 is compared in a reference circuit 3 with a signal applied from a source 4, the resultant difference signal from 3 being applied to servo mechanism 5 actuating the control elements of the reactor 1. The element 2 is described as a neutron pulse chamber and by arranging its path so that the neutron flux is roughly an exponential function of the spatial co-ordinate of its position, the rate of growth of the reactor output corresponds to the velocity at which the neutron chamber is moved.
Patent GB-216219-A (GB)
Title: Improvements in or relating to artificial lines for cable and other telegraphy
IPC: H04L5/14
Filed: 1923-02-24
Abstract: 216,219. Muirhead & Co., Ltd., and Bavies, B. Feb. 24, 1923. Artificial lines f o r duplex working are provided with inductance and resistance elements in parallel, the parallel elements being of different types and the arrangement being such that the inductance and resistance of the artificial line vary with change of the current frequency in a direction and to an extent to compensate for the corresponding changes in the main cable. An inductance LR may be arranged in parallel with a non-inductive resistance r, Fig. 1, or there may be added in series with the resistance r a subsidiary inductance L', Fig. 2, or a capacity S, Fig. 3, or both an inductance and a. capacity. More than two branches in parallel may be used. The compensating elements may be applied as a unit at the beginning of the artificial line or may be distributed along the line.
Patent GB-137171-A (GB)
Title: Improved fertiliser and method of producing the same
IPC: C05B13/02
Filed: 1919-03-05
Abstract: Alkali compounds, obtaining from complex silicates.  An alkaliferous rock (particularly feldspar) or its weathering products is heated with gypsum and limestone as described in Specification 12136/14, but, instead of washing out the alkali salts, the product is disintegrated and used as a fertilizer. Rock or minerals containing phosphoric acid, such as apatite or phosphorites, may be mixed with the alkaliferous rock prior to the heat-treatment.
Patent GB-266901-A (GB)
Title: Process and device for the transport of pulverulent material
IPC: B65G53/22
Filed: 1926-02-26
Abstract: 266,901. Jorgensen, M. Vogel-. Feb. 26, 1926. Pneumatic conveyers.-Pulverulent material is brought into a liquid-like consistency by inflating with a small quantity of air or other gas and simultaneously stirring or agitating it by means of rotary arms, blades, &c., and is then pumped through the conveyer pipe by means known for pumping liquids or gases, e.g. a centrifugal pump or an injector pump. Air is supplied to the mixing vessel 1, Fig. 1, by a pipe 2 which terminates in perforated stirring arms 3. The material is agitated by a rotary stirrer 4 and conveyed by a centrifugal pump 5 or by an injector pump. A worm 8, Fig. 2, conveys the material from a hopper 9 to a chamber 10 in which it is stirred by blades 11 and mixed with air supplied through the hollow worm shaft. The injector pump 13 is also supplied by this shaft.
Patent GB-661977-A (GB)
Title: Improvements relating to devices for punching holes in sheet material such as paper,parchment and the like
IPC: B26F1/36
Filed: 1949-03-02
Abstract: 661,977. Punching-machines. MACLEAN. T. T. Feb. 15. 1950 [March 2, 1949], No, 5663/49. Class 31 (ii). In a device for punching holes in paper or like sheet material, a punch member 13 is associated with a plate 11b that is formed with slots or apertures 17 with which a hole that has been punched in the material is aligned in order to locate the next hole therefrom.
Patent GB-344197-A (GB)
Title: Machine for wrapping sweetmeat or similar articles in one or several wrappers with fringed ends
IPC: B65B51/00
Filed: 1930-02-20
Abstract: 344,197. Cutting paper webs. HARTMANN, R., 3, Basteistrasse, Dresden, Germany. Feb. 20, 1930, No. 5695. [Class 31 (i).] Stationary - cutter machines.-A device for fring- ing Wrappers on their way to a wrapping- machine comprises a guide 6, shown in plan in Fig. 2, in which two carriages 10 are adapted to travel horizontally. Each carriage carries two rows of knife discs 13 slightly meshing. Each row is connected to a fixed bracket 9 by crank-rods 15, so that, when the (arriages 10 are caused to approach by linkage 12, 14, the discs rotate during their inward movement to engage and cut slits in the edges of a web of paper disposed between them. The web is severed into wrappers, which are applied to sweetmeats, &c. to form packets as shown in Fig. 3.
Patent GB-273778-A (GB)
Title: Improvements relating to tablet & like moulds
IPC: A23D9/02
Filed: 1926-03-02
Abstract: 273,778. Leurs, J. J., and Murphy, W. K. March 2, 1926. Moulds. - A mould which can be readily assembled and taken to pieces comprises a base plate having a rebated portion all round its edges on which the sides and ends rest, two sides I recessed for receiving division plates and provided with part hinges at the ends, two end pieces E recessed for division plates and adapted to be secured in the assembled position by screws A and toggle links D provided with part hinges for co-operating with those on the sides. Loose hinge pins C are removable to allow ready dismantling of the mould. Division plates G, H of less depth than the mould are arranged in conjunction with perforated horizontal plates to form tiers of recesses, the depth of which can be varied by the positioning of the horizontal plates. The apparatus is designed for moulding uniform quantities of fats or the like the horizontal plates being set to produce quarter, half, or full pounds, or a combination of these in the different tiers as required.
Patent GB-143341-A (GB)
Title: Improvements in the synthetic production of ammonia
IPC: C01C1/04
Filed: 1919-03-10
Abstract: 143,341. Rideal, E. K., and Tarrant, A. G. March 10, 1919. Resistances, measuring; resistances. - In an apparatus for estimating the proportion of ammonia in gases, the latter are led through a regulating-valve c and flow-meter d, f to an absorber a supplied with water at a predetermined rate from a vessel b, etc.; the solution so obtained is then passed into an electrolytic cell g having electrodes b, i of platinum &c. and in circuit with suitable apparatus for measuring the electrical resistance of the liquid between them.
Patent GB-1101151-A (GB)
Title: Camera carrying case
IPC: A45C11/38
Filed: 1965-02-11
Abstract: 1,101,151. Camera cases. EASTMAN KODAK CO. Feb. 11, 1965 [Feb. 17, 1964], No. 5969 / 65. Heading G2A. A carrying case for a photographic camera comprises a V-shaped bracket 20 of spring steel to which are hinged a moulded plastics front portion 32 and back portion 34, which portions are latched together when closed by a spring detent 50. A hook 25 on the arm 22 of the bracket engages in an opening 18 of a camera C, through which opening the latch of the camera back may be released. The arm 23 of the bracket is now pushed outwards, allowing the camera to be fully inserted in the bracket, a slot 27 in the arm 23 engaging an apertured fastener (19) Fig. 2 (not shown) to which a carrying wrist strap is attached. A cut-out portion 47 of the portion 32 leaves the slot 27 exposed when the case is closed. To be able to make exposures when the front portion only is open, detents 45 and recesses 46 are provided to lock the bracket and back portion, and recesses and holes for the film wind lever, view-finder and exposure counter are also provided in the portion 34.
Patent GB-163510-A (GB)
Title: Improvements in the manufacture of malleable iron castings
IPC: C22C38/16
Filed: 1920-02-28
Abstract: 163,510. Wooby, G. H. Feb. 28, 1920. Alloys.-An iron alloy for malleable castings contains 7 to 12 per cent of nickel, 4 to 10 per cent of copper and up to 10 per cent of manganese, carbon, silicon, phosphorus, and sulphur being low. The iron is melted and carbon, silicon, &c. burnt out, then nickel and copper are added separately or as alloy, and lastly manganese is added. Unless a high carbon content is required, when anthracite coal may be added, sufficient carbon and silicon are introduced by the addition of ferro-manganese. A purer grade iron, such as blister steel, is required if the crucible process is used. Ferro-titanium up to 0.5 per cent may be added to make the castings cleaner. Various specific compositions of the alloys are given in the Specification.